CN211846123U

CN211846123U - Ultrahigh molecular carrier roller and ultrahigh molecular carrier roller sealing structure

Info

Publication number: CN211846123U
Application number: CN202020228181.4U
Authority: CN
Inventors: 史新洋; 李贝; 金宝龙; 李超; 李福华; 王善忠; 李全会; 刘亚忠; 周如如
Original assignee: Yankuang Group Continent Machinery Co ltd; Yankuang Donghua Heavy Industry Co ltd
Current assignee: Yankuang Group Continent Machinery Co ltd; Yankuang Donghua Heavy Industry Co ltd
Priority date: 2020-02-28
Filing date: 2020-02-28
Publication date: 2020-11-03
Anticipated expiration: 2030-02-28

Abstract

The utility model discloses an ultra-high molecular carrier roller sealing structure, which comprises a bearing seat for a carrier roller shaft to be inserted, at least two groups of lip-shaped sealing components which are arranged between the bearing seat and the carrier roller shaft in a side-by-side mode along the axial direction of the bearing seat, and a lubricant which is filled in a sealing loop of any one of the lip-shaped sealing components; any one group of lip-shaped sealing components comprises a T-shaped sealing ring and an L-shaped sealing ring which are distributed in a lip edge staggered manner; all lip seal assemblies are axially fixed to the outside of the bearing in the bearing housing by a dust cap fixed to the outside of the bearing housing. Also discloses an ultrahigh molecular carrier roller, which comprises the ultrahigh molecular carrier roller sealing structure. The sealing structure adopts the T-shaped sealing ring and the L-shaped sealing ring to form the lip-shaped sealing assembly, and the dust cover is combined to achieve a good sealing effect on the bearing. The sealing rings are used as standard parts, so that the cost is low, the sizes are uniform, the purchase and the replacement are convenient, and the installation and the disassembly are convenient; the lubricant reduces the rotation resistance of the bearing and improves the working environment of the bearing and the roller carrier shaft.

Description

Ultrahigh molecular carrier roller and ultrahigh molecular carrier roller sealing structure

Technical Field

The utility model relates to a bearing seal field especially relates to an ultra high molecular bearing roller seal structure. The utility model discloses still relate to an ultra high molecule bearing roller, including above-mentioned ultra high molecule bearing roller seal structure.

Background

The carrier roller is an important part and a vulnerable part of the belt conveyor, and the performance of the carrier roller directly determines the service life and the use cost of the belt conveyor. The ultra-high molecular carrier roller is a novel carrier roller product appearing in recent years, and has the advantages of simple structure, reliable sealing, small running resistance coefficient and long service life. However, the existing ultra-high molecular carrier roller has serious abrasion to the sealing structure, and the existing carrier roller sealing structure is difficult to meet the working requirement of the ultra-high molecular carrier roller, so that the carrier roller sealing structure needs to be frequently replaced, and the maintenance difficulty and the maintenance cost are increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a bearing roller seal structure of super high molecule can simplify bearing roller seal structure and installation, reduces and maintains the degree of difficulty and maintenance cost. Another object of the utility model is to provide an ultra high molecular bearing roller, including above-mentioned ultra high molecular bearing roller seal structure.

In order to achieve the above object, the utility model provides an ultra-high molecular carrier roller sealing structure, which comprises a bearing seat, at least two groups of lip-shaped sealing components and a lubricant, wherein the bearing seat is used for inserting a carrier roller shaft, the lip-shaped sealing components are arranged between the bearing seat and the carrier roller shaft in parallel along the axial direction of the bearing seat, and the lubricant is filled in a sealing loop of any one of the lip-shaped sealing components; any one group of lip-shaped sealing components comprises a T-shaped sealing ring and an L-shaped sealing ring which are distributed in a lip edge staggered mode; and all the lip-shaped sealing assemblies are axially fixed on the outer side of the bearing in the bearing seat through dust covers fixed on the outer side of the bearing seat.

Preferably, the inner side of the periphery of the dust cover is provided with a groove which is concave towards the outside of the bearing seat; the groove is embedded in the bearing seat convex edge on the outer side of the bearing seat in a clamping manner; the inner side of the inner periphery of the dustproof cover is provided with a dustproof cover convex edge protruding towards the interior of the bearing seat, and the dustproof cover convex edge is pressed against the outer side of the lip-shaped sealing assembly.

Preferably, a sealing retainer ring is further press-fitted between the bearing seat and outer rings of all the L-shaped sealing rings.

Preferably, the sealing retainer ring comprises a first retainer ring wall inserted along the outer ring of all the L-shaped sealing rings and a second retainer ring wall attached to the lip edge of the outermost L-shaped sealing ring and extending.

Preferably, the lip of the T-shaped seal ring is parallel to the lip of the L-shaped seal ring.

Preferably, the lubricant is a lithium-based grease.

Preferably, the bearing is a unilateral sealed bearing; and the sealing ring of the unilateral sealing bearing deviates from the innermost T-shaped sealing ring.

Preferably, the outer side of the inner ring of the dustproof cover is axially fixed on the roller carrier shaft through a retainer ring which is sleeved and fixed on the roller carrier shaft.

Preferably, the T-shaped sealing ring is a nylon sealing ring; the L-shaped sealing ring is specifically a polyurethane sealing ring.

This with novel still providing an ultra high molecule bearing roller, including above-mentioned ultra high molecule bearing roller seal structure.

Compared with the prior art, the utility model provides an ultra-high molecule bearing roller seal structure includes bearing frame and bearing, and the bearing roller shaft alternates from the inside of bearing frame and bearing, is equipped with two sets of lip seal assembly and the emollient of packing in lip seal assembly's sealed return circuit side by side along the axial of bearing frame between bearing frame and the bearing roller shaft at least, and the shield axial is fixed in the bearing outside in the bearing frame, and then realizes that whole lip seal assembly is fixed at the epaxial of bearing roller.

The lip seal assembly of the ultrahigh molecular carrier roller seal structure comprises T-shaped seal rings and L-shaped seal rings which are distributed in a lip staggered mode, the T-shaped seal rings and the L-shaped seal rings are low in cost and uniform in size as standard parts, purchasing and replacement are facilitated, the lip seal assembly consisting of the T-shaped seal rings and the L-shaped seal rings is pressed between a bearing seat and a carrier roller shaft along the axial direction of the bearing seat, and the lip seal assembly is axially fixed by a dustproof cover and is convenient to install and disassemble. In addition, the dust cover, the bearing seat, the T-shaped sealing ring and the L-shaped sealing ring are used as sealing structures of the carrier roller, so that the sealing effect is ensured; the lubricant is filled in the sealing structure, so that the rotating resistance is reduced, and the working environment of the bearing and the roller carrier shaft is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural view of an ultra-high molecular carrier roller sealing structure provided in an embodiment of the present invention;

fig. 2 is a partially enlarged view of fig. 1.

The bearing comprises a bearing roller shaft 01, a bearing roller shaft 02, a cylinder skin 1, a bearing seat 2, a T-shaped sealing ring 3, an L-shaped sealing ring 4, a dustproof cover 41, a groove 42, a dustproof cover convex edge 42, a bearing 5, a sealing retainer ring 6, a first retainer ring wall 61, a second retainer ring wall 62 and a retainer ring 7.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In order to make the technical field of the present invention better understand, the present invention will be described in detail with reference to the accompanying drawings and the detailed description.

Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of an ultra-high molecular carrier roller sealing structure according to an embodiment of the present invention; fig. 2 is a partially enlarged view of fig. 1.

The utility model provides an ultra high molecule bearing roller seal structure, include and still include at least two sets of lip seal assembly for supplying bearing roller axle 01 male bearing frame 1 and bearing 5. All the lip-shaped sealing assemblies are pressed between the inner wall of the bearing seat 1 and the periphery of the roller carrier shaft 01 side by side along the axial direction of the bearing seat 1 and the bearing 5, and are axially fixed on the outer side of the bearing 5 by a dustproof cover 4 fixed on the outer side of the bearing seat 1.

Any set of lip seal subassembly includes lip form phase-staggered distribution's T type sealing washer 2 and L type sealing washer 3, and the lip form of T type sealing washer 2 sets up towards the root of L type sealing washer 3, and the lip form of L type sealing washer 3 sets up towards the root of T type sealing washer 2, and the interval has the lip form of L type sealing washer 3 between two adjacent T type sealing washers 2 of all lip seal subassemblies, otherwise, the interval has the lip form of T type sealing washer 2 between two adjacent L type sealing washers 3.

The T-shaped sealing ring 2 and the L-shaped sealing ring 3 of any lip-shaped sealing assembly form a sealing loop, and the sealing loop is filled with lubricant to form an oil pool. The inner oil pool close to the bearing 5 can provide sufficient lubricant for the bearing 5, and other oil pools and the dust cover 4 form sealing, so that the inner oil pool is protected in a sealing manner, and the sealing reliability of the bearing 5 is ensured.

Wherein, the lubricant can adopt lithium-based lubricating grease special for the ultra-high molecular carrier roller; the T-shaped sealing ring 2 can be specifically set as a nylon sealing ring; the L-shaped sealing ring 3 may be specifically configured as a polyurethane sealing ring.

To sum up, the utility model provides a lip seal structure that seal structure adopted seal structure, T type sealing washer 2 and the 3 formation of L type sealing washer that shield 4 and bearing frame 1 formed as the twice of this bearing roller seals the defence line, ensures sealed effect. The lip seal structure is filled with a lubricant, which reduces the rotational resistance of the bearing 5 and improves the working environment of the bearing 5 and the carrier roller shaft 01. In addition, the carrier roller is used as one of the parts with the largest use amount and the most frequent replacement of the belt conveyor, and the T-shaped sealing ring 2 and the L-shaped sealing ring 3 which are used as standard parts have uniform size compared with the traditional sealing structure, are convenient to purchase and replace and reduce the purchase cost; the roller sealing structure and the installation thereof are simplified, the difficulty of installation and disassembly is low, and the maintenance difficulty and the maintenance cost of the ultra-high molecular roller are reduced.

The ultra-high molecular roller sealing structure provided by the present invention will be further described with reference to the accompanying drawings and embodiments.

For better sealing effect, the utility model provides an inboard of shield 4 is equipped with recess 41 and shield chimb 42 towards one side of bearing frame 1 promptly.

The dust cover 4 is annular, the middle part of the dust cover is provided with a through hole for the roller carrier shaft 01 to pass through, the groove 41 is arranged on the inner side of the outer periphery of the dust cover 4, namely the inner side of the outer ring, and the dust cover convex edge 42 is arranged on the inner side of the inner periphery of the dust cover 4, namely the inner side of the inner ring. After the dust cover 4 is installed and fixed towards the bearing seat 1, the groove 41 is embedded in the convex edge of the bearing seat on the outer side of the bearing seat 1 in a clamping manner, and forms a labyrinth seal structure with the convex edge of the bearing seat; the dust cover flange 42 is pressed against the outer side of the lip seal assembly, and plays a role in positioning all the lip seal assemblies along the axial direction of the bearing seat 1.

In this embodiment, the dust cover 4 forms a labyrinth seal structure with the bearing housing 1, the lip seal structure combined with the entire lip seal assembly forms a labyrinth-lip compound seal structure for the bearing 5, and an axial seal and a radial seal are formed on the outer side of the bearing 5, ensuring the sealing effect.

Furthermore, a sealing retainer ring 6 is pressed between the bearing seat 1 and the outer rings of all the L-shaped sealing rings 3.

After all lip seal assemblies are assembled and pressed in according to the sequence of T-shaped seal rings 2 and L-shaped seal rings 3, the inner wall of the bearing seat 1 is pressed and installed by utilizing the seal retainer ring 6 along the outer ring of all the L-shaped seal rings 3, so that the radial positions of all the lip seal assemblies between the bearing seat 1 and the roller carrier shaft 01 are fixed, the positioning and installation of all the lip seal assemblies are greatly simplified by combining the axial fixation of the dustproof cover 4, and otherwise, the disassembly and replacement of all the lip seal assemblies are also simplified.

On the basis of the foregoing embodiment, the above-mentioned sealing retainer 6 includes the first retainer wall 61 and the second retainer wall 62, the first retainer wall 61 and the second retainer wall 62 are right-angled in the cross section of the sealing retainer 6, after the sealing retainer 6 is press-fitted along the outer rings of all the L-shaped sealing rings 3, the first retainer wall 61 is attached between the outer rings of all the L-shaped sealing rings 3 and the inner wall of the bearing seat 1, and the second retainer wall 62 is attached to the lip edge of the outermost L-shaped sealing ring 3 and extends, so that the sealing retainer can support the outermost L-shaped sealing ring 3 and can further ensure the axial positioning of all the lip-shaped sealing assemblies.

For better technical effect, the lip edges of any one group of the T-shaped sealing rings 2 are parallel to the lip edge of the L-shaped sealing ring 3, and the T-shaped sealing rings 2 and the L-shaped sealing rings 3 are press-fitted between the bearing seat 1 and the carrier roller shaft 01, so in this embodiment, both the lip edges of the T-shaped sealing rings 2 and the lip edge of the L-shaped sealing ring 3 are perpendicular to the axial direction of the carrier roller shaft 01, that is, the axial direction of the bearing seat 1. In this embodiment, the lips of all the T-shaped seal rings 2 and the lips of all the L-shaped seal rings 3 are distributed in parallel, the distance between two adjacent lips is equal, and a plurality of groups of T-shaped seal rings 2 and L-shaped seal rings 3 are combined into an S-shaped sealing path.

Except that the labyrinth-lip compound seal structure that shield 4 and whole lip seal subassembly make up, in the utility model provides a another kind of embodiment, bearing 5 specifically sets up to unilateral sealed bearing, and unilateral sealed bearing is from taking the sealing washer, and unilateral sealed bearing's sealing washer deviates from innermost T type sealing washer 2.

In order to simplify the fixing of shield 4 and bearing frame 1, the utility model provides an ultra-high molecule bearing roller seal structure is still including being fixed in bearing roller axle 01's retaining ring 7, interference fit between retaining ring 7 and the bearing roller axle 01, shield 4 inlay card between retaining ring 7 and bearing frame 1, in other words, the inner circle outside of shield 4 is through retaining ring 7 axial fixity in bearing roller axle 01.

The utility model also provides an ultra-high molecular bearing roller, including above-mentioned ultra-high molecular bearing roller seal structure.

The ultrahigh molecular carrier roller further comprises a carrier roller shaft 01 and a sleeve skin 02, the periphery of the bearing block 1 is clamped in the sleeve skin 02 of the ultrahigh molecular carrier roller, and when the T-shaped sealing ring 2 and the L-shaped sealing ring 3 which are used as sealing structures are replaced, the dustproof cover 4, the L-shaped sealing ring 3 and the T-shaped sealing ring 2 are only required to be sequentially dismounted along the axial directions of the bearing block 1 and the carrier roller shaft 01.

It is right above the utility model provides an ultrahigh molecular bearing roller and ultrahigh molecular bearing roller seal structure have introduced in detail. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. An ultrahigh molecular carrier roller sealing structure comprises a bearing seat (1) into which a carrier roller shaft (01) is inserted, and is characterized by further comprising at least two groups of lip-shaped sealing assemblies which are arranged in parallel along the axial direction of the bearing seat (1) and are pressed between the bearing seat (1) and the carrier roller shaft (01) and a lubricant filled in a sealing loop of any one of the lip-shaped sealing assemblies; any one group of lip-shaped sealing components comprises a T-shaped sealing ring (2) and an L-shaped sealing ring (3) which are distributed in a lip-shaped staggered manner; and all the lip-shaped sealing assemblies are axially fixed on the outer side of a bearing (5) in the bearing seat (1) through a dustproof cover (4) fixed on the outer side of the bearing seat (1).

2. The ultra-high molecular carrier roller sealing structure according to claim 1, wherein the inner side of the outer circumference of the dust cover (4) is provided with a groove (41) recessed toward the outside of the bearing seat (1); the groove (41) is embedded in a bearing seat convex edge (11) on the outer side of the bearing seat (1); the inner side of the inner periphery of the dustproof cover (4) is provided with a dustproof cover convex edge (42) which is protruded towards the interior of the bearing seat (1), and the dustproof cover convex edge (42) is pressed against the outer side of the lip-shaped sealing component.

3. The ultrahigh molecular carrier roller sealing structure according to claim 2, wherein a sealing retainer ring (6) is further press-fitted between the bearing seat (1) and the outer rings of all the L-shaped sealing rings (3).

4. The ultra-high molecular idler seal structure according to claim 3, characterized in that the sealing retainer ring (6) includes a first retainer ring wall (61) inserted along the outer ring of all the L-shaped seal rings (3) and a second retainer ring wall (62) extending along the lip of the outermost L-shaped seal ring (3).

5. The ultra-high molecular idler seal structure according to claim 1, wherein the lip of the T-shaped seal ring (2) is parallel to the lip of the L-shaped seal ring (3).

6. The ultra-high molecular idler seal structure according to claim 1, characterised in that the lubricant is lithium-based grease.

7. The ultra-high molecular idler seal structure according to claim 1, characterised in that the bearing (5) is a single-sided sealed bearing; and a sealing ring of the unilateral sealing bearing deviates from the innermost T-shaped sealing ring (2).

8. The ultrahigh molecular carrier roller sealing structure according to any one of claims 1 to 7, wherein the outer side of the inner ring of the dust cover (4) is axially fixed to the carrier roller shaft (01) through a retainer ring (7) which is sleeved on and fixed to the carrier roller shaft (01).

9. The ultra-high molecular carrier roller sealing structure according to any one of claims 1 to 7, wherein the T-shaped sealing ring (2) is a nylon sealing ring; the L-shaped sealing ring (3) is specifically a polyurethane sealing ring.

10. An ultrahigh molecular idler seal structure according to any one of claims 1 to 9, wherein said ultrahigh molecular idler seal structure is provided.